Fix wasm_bindgen_futures not using custom path

Author: daxpedda

CHANGELOG.md

@@ -14,11 +14,13 @@
 * Add bindings for `WebAssembly.Tag` and `WebAssembly.Exception`.
   [#3484](https://github.com/rustwasm/wasm-bindgen/pull/3484)
 
-* Re-export `wasm-bindgen` from `js-sys` and `web-sys`.
+* Re-export `wasm-bindgen` from `js-sys`, `web-sys` and `wasm-bindgen-futures`.
   [#3466](https://github.com/rustwasm/wasm-bindgen/pull/3466)
+  [#3601](https://github.com/rustwasm/wasm-bindgen/pull/3601)
 
-* Re-export `js-sys` from `web-sys`.
+* Re-export `js-sys` from `web-sys` and `wasm-bindgen-futures`.
   [#3466](https://github.com/rustwasm/wasm-bindgen/pull/3466)
+  [#3601](https://github.com/rustwasm/wasm-bindgen/pull/3601)
 
 * Add bindings for async variants of `Atomics.wait`.
   [#3504](https://github.com/rustwasm/wasm-bindgen/pull/3504)
@@ -110,6 +112,11 @@
 * Fixed optional parameters in JSDoc.
   [#3577](https://github.com/rustwasm/wasm-bindgen/pull/3577)
 
+* Use re-exported `js-sys` from `wasm-bindgen-futures` to account for
+  non-default path specified by the `crate` attribute in `wasm_bindgen_futures`
+  proc-macro.
+  [#3601](https://github.com/rustwasm/wasm-bindgen/pull/3601)
+
 ### Removed
 
 * Removed `ReadableStreamByobReader::read_with_u8_array()` because it doesn't work with Wasm.

crates/backend/src/codegen.rs

@@ -1190,11 +1190,11 @@ impl TryToTokens for ast::ImportFunction {
             Some(ref ty) => {
                 if self.function.r#async {
                     abi_ret = quote! {
-                        #wasm_bindgen::convert::WasmRet<<js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>::Abi>
+                        #wasm_bindgen::convert::WasmRet<<#wasm_bindgen_futures::js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>::Abi>
                     };
                     let future = quote! {
                         #wasm_bindgen_futures::JsFuture::from(
-                            <js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>
+                            <#wasm_bindgen_futures::js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>
                                 ::from_abi(#ret_ident.join())
                         ).await
                     };
@@ -1216,11 +1216,11 @@ impl TryToTokens for ast::ImportFunction {
             None => {
                 if self.function.r#async {
                     abi_ret = quote! {
-                        #wasm_bindgen::convert::WasmRet<<js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>::Abi>
+                        #wasm_bindgen::convert::WasmRet<<#wasm_bindgen_futures::js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>::Abi>
                     };
                     let future = quote! {
                         #wasm_bindgen_futures::JsFuture::from(
-                            <js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>
+                            <#wasm_bindgen_futures::js_sys::Promise as #wasm_bindgen::convert::FromWasmAbi>
                                 ::from_abi(#ret_ident.join())
                         ).await
                     };

crates/futures/src/lib.rs

@@ -46,6 +46,9 @@ mod queue;
 #[cfg(feature = "futures-core-03-stream")]
 pub mod stream;
 
+pub use js_sys;
+pub use wasm_bindgen;
+
 mod task {
     use cfg_if::cfg_if;
 

crates/macro/ui-tests/async-errors.stderr

@@ -32,10 +32,10 @@ error[E0277]: the trait bound `wasm_bindgen::JsValue: From<BadType>` is not sati
              <wasm_bindgen::JsValue as From<&'a str>>
              <wasm_bindgen::JsValue as From<*const T>>
              <wasm_bindgen::JsValue as From<*mut T>>
-             <wasm_bindgen::JsValue as From<JsError>>
-             <wasm_bindgen::JsValue as From<MyType>>
-             <wasm_bindgen::JsValue as From<Option<T>>>
-           and 74 others
+             <wasm_bindgen::JsValue as From<Array>>
+             <wasm_bindgen::JsValue as From<ArrayBuffer>>
+             <wasm_bindgen::JsValue as From<BigInt64Array>>
+           and $N others
    = note: required for `BadType` to implement `Into<wasm_bindgen::JsValue>`
    = note: required for `BadType` to implement `IntoJsResult`
    = note: this error originates in the attribute macro `wasm_bindgen` (in Nightly builds, run with -Z macro-backtrace for more info)